Britney Spears Takes The Stage

Britney Spears treated fans to a live performance at Bill Graham Civic Auditorium in San Francisco on Sunday for her upcoming Good Morning America comeback concert, airing Tuesday morning. On the road to promote her new album Femme Fatale of late, Spears also hit the stage in Las Vegas over the weekend. The 29-year-old performed new songs like "Femme Fatale" and "Big Fat Bass" to a crowd of 1,500 at Palms Casino Resort in Las Vegas.